NCLE EXAM, PRACTICE EXAM AND STUDY
GUIDE LATEST 2024 ACTUAL EXAM CONTAINS
600 QUESTIONS AND CORRECT DETAILED
ANSWERS WITH RATIONALES (VERIFIED
ANSWERS) |ALREADY GRADED A+
Which of the following medications may affect successful contact lens wear?
Antacids
Antihistamines
Asprin
Laxatives - ANSWER Antihistamines
Which term refers to sensitivity to light?
Presbyopia
Pannus
Ptosis
Photophobia - ANSWER Photophobia
This is an example of what type of astigmatism: K's 42.50@ .50@90
With the rule
Lenticular
Against the rule
Irregular - ANSWER Against the rule
The cornea receives nutrients from:
1. Aqueous humor
2. Tears
3. Kimball blood vessels
4. Orbicularis occuli - ANSWER 1,2,&3
The increased loss of ability of crystalline lens accommodate is called:
Presbyopia
Myopia
Hyperopia
Aphakia - ANSWER Presbyopia
, Which instrument can provide simultaneous information about the cornea, lids,
conjunctiva, lashes, contact lens surface and fit
Radiuscope
Corneoscope
Slit lamp
Keratometer - ANSWER Slit lamp
K reading - ANSWER Anterior corneal curvature measurements obtained using
keratometer
Lacrimal lens - ANSWER The lens that is formed by the tears that collect between
the base curve of a contact lens and the anterior cornea.
Plus lacrimal lens - ANSWER Steeper BC than "k" results in..
Minus lacrimal lens - ANSWER Results from BC being flatter than "k"
Corneal astigmatism - ANSWER All astigmatism found in the curvature of the
cornea as determined by the k readings
What is the corneal astigmatism?
"K" readings= 45.00D @.00 @ 90 - ANSWER 2.00D of corneal
astigmatism
With the rule astigmatism - ANSWER the vertical corneal meridian has the
steepest curvature
What is the type of astigmatism?
"K" readings= 46.00D @.25D @ 90 - ANSWER With the rule astigmatism.
Against the rule astigmatism - ANSWER the horizontal meridian (2nd k reading)
has the steepest curvature
What is the type of astigmatism?
"K" readings= 46.00D @.25D @ 90 - ANSWER Against the rule
Residual astigmatism - ANSWER Astigmatism discovered during the refraction that
is not located on the cornea. May also be known as lenticular astigmatism
What is the type of astigmatism?
Spec Rx: 2.50 -1.75 x 165
"K" readings= 43.00D @.00D @ 90 - ANSWER Residual. Cyl does not
match the difference in k readings
Apical clearance philosophy (central cornea) - ANSWER Fitting technique where
the lens is designed w posterior lens curve. (BC) steeper than flattest corneal
meridian. Used with "against the rule" astigmatism
GUIDE LATEST 2024 ACTUAL EXAM CONTAINS
600 QUESTIONS AND CORRECT DETAILED
ANSWERS WITH RATIONALES (VERIFIED
ANSWERS) |ALREADY GRADED A+
Which of the following medications may affect successful contact lens wear?
Antacids
Antihistamines
Asprin
Laxatives - ANSWER Antihistamines
Which term refers to sensitivity to light?
Presbyopia
Pannus
Ptosis
Photophobia - ANSWER Photophobia
This is an example of what type of astigmatism: K's 42.50@ .50@90
With the rule
Lenticular
Against the rule
Irregular - ANSWER Against the rule
The cornea receives nutrients from:
1. Aqueous humor
2. Tears
3. Kimball blood vessels
4. Orbicularis occuli - ANSWER 1,2,&3
The increased loss of ability of crystalline lens accommodate is called:
Presbyopia
Myopia
Hyperopia
Aphakia - ANSWER Presbyopia
, Which instrument can provide simultaneous information about the cornea, lids,
conjunctiva, lashes, contact lens surface and fit
Radiuscope
Corneoscope
Slit lamp
Keratometer - ANSWER Slit lamp
K reading - ANSWER Anterior corneal curvature measurements obtained using
keratometer
Lacrimal lens - ANSWER The lens that is formed by the tears that collect between
the base curve of a contact lens and the anterior cornea.
Plus lacrimal lens - ANSWER Steeper BC than "k" results in..
Minus lacrimal lens - ANSWER Results from BC being flatter than "k"
Corneal astigmatism - ANSWER All astigmatism found in the curvature of the
cornea as determined by the k readings
What is the corneal astigmatism?
"K" readings= 45.00D @.00 @ 90 - ANSWER 2.00D of corneal
astigmatism
With the rule astigmatism - ANSWER the vertical corneal meridian has the
steepest curvature
What is the type of astigmatism?
"K" readings= 46.00D @.25D @ 90 - ANSWER With the rule astigmatism.
Against the rule astigmatism - ANSWER the horizontal meridian (2nd k reading)
has the steepest curvature
What is the type of astigmatism?
"K" readings= 46.00D @.25D @ 90 - ANSWER Against the rule
Residual astigmatism - ANSWER Astigmatism discovered during the refraction that
is not located on the cornea. May also be known as lenticular astigmatism
What is the type of astigmatism?
Spec Rx: 2.50 -1.75 x 165
"K" readings= 43.00D @.00D @ 90 - ANSWER Residual. Cyl does not
match the difference in k readings
Apical clearance philosophy (central cornea) - ANSWER Fitting technique where
the lens is designed w posterior lens curve. (BC) steeper than flattest corneal
meridian. Used with "against the rule" astigmatism
